Importance of Electrode Tailoring in the Coupling of Electrolysis with Renewable Energy
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2020-06-16 |
| Journal | ChemElectroChem |
| Authors | V.M. GarcĂa-Orozco, MarĂa MillĂĄn, Justo Lobato, Carmen M. FernĂĄndezâMarchante, Gabriela RoaâMorales |
| Institutions | University of Castilla-La Mancha, Universidad AutĂłnoma del Estado de MĂ©xico |
| Citations | 6 |
Abstract
Section titled âAbstractâAbstract In this work, it has been evaluated how the performance of an electrolyzer, used to treat a clopyralid waste and directly powered without regulation by a battery, is influenced by the electrodes resistance. Electrolyzers were equipped with electrodes consisting of the same boronâdoped diamond (BDD) coating deposited on different substrate (Si, Ta and Nb). The results expose great differences despite using the same coating. Faster removal rates were attained with Taâ and NbâBDD electrodes. The amount of energy required to attain the same removal efficiency showed great differences. Up to 1.95 mg/Wh of pesticide were removed when using Si, compared to 2.14 mg/Wh removed with Ta. Furthermore, the quantity and strength of the generated oxidants were also quite different. 86.78 mmol of oxidants were needed to remove a gram of pesticide with TaâBDD and 30.57 mmol with SiâBDD. Therefore, the electrode resistance is an important aspect that must be considered in order to get a suitable design of energy storage systems that allow the green photovoltaic powering of electrochemical technologies using conventional batteries as a booster to ensure a continuous operation.